Can anyone help me create a picker to grep using git changed lines?

[AlejandroSanchez90]

im looking a way to move this picker that i had in fzf to snacks pickers, i don't understand lua and neovim api just yet, and i really need it for my job

i need a way to grep using all lines from git changed files, so i can remove debug code faster before commiting.

so populate the picker with the lines or files, and grep using the changed lines, and be able to jump to that line on select

[drowning-cat]

At least explain properly what you want. From what I understand, you want to narrow the grep search to only the git lines that have been modified (search hunks).

To search git status files you can use: https://github.com/folke/snacks.nvim/blob/main/docs/picker.md#git_status.
Once you're inside a file, you can navigate between hunks using lewis6991/gitsigns.nvim with ]c and ]c keymaps.

[AlejandroSanchez90]

Yes, grep search using all git lines that have been modified. What I'm doing right now is going to neogit, and expand all changes, and just doing a regular search using '/'

[drowning-cat]

Git grep hunks

opts = {
  picker = {
    sources = {
      git_grep_hunks = {
        supports_live = false,
        format = function(item, picker)
          local file_format = Snacks.picker.format.file(item, picker)
          vim.api.nvim_set_hl(0, 'SnacksPickerGitGrepLineNew', { link = 'Added' })
          vim.api.nvim_set_hl(0, 'SnacksPickerGitGrepLineOld', { link = 'Removed' })
          if item.sign == '+' then
            file_format[#file_format - 1][2] = 'SnacksPickerGitGrepLineNew'
          else
            file_format[#file_format - 1][2] = 'SnacksPickerGitGrepLineOld'
          end
          return file_format
        end,
        finder = function(_, ctx)
          local hcount = 0
          local header = {
            file = '',
            old = { start = 0, count = 0 },
            new = { start = 0, count = 0 },
          }
          local sign_count = 0
          return require('snacks.picker.source.proc').proc(
            ctx:opts {
              cmd = 'git',
              args = { 'diff', '--unified=0' },
              transform = function(item) ---@param item snacks.picker.finder.Item
                local line = item.text
                -- [[Header]]
                if line:match '^diff' then
                  hcount = 3
                elseif hcount > 0 then
                  if hcount == 1 then
                    header.file = line:sub(7)
                  end
                  hcount = hcount - 1
                elseif line:match '^@@' then
                  local parts = vim.split(line:match '@@ ([^@]+) @@', ' ')
                  local old_start, old_count = parts[1]:match '-(%d+),?(%d*)'
                  local new_start, new_count = parts[2]:match '+(%d+),?(%d*)'
                  header.old.start, header.old.count = tonumber(old_start), tonumber(old_count) or 1
                  header.new.start, header.new.count = tonumber(new_start), tonumber(new_count) or 1
                  sign_count = 0
                -- [[Body]]
                elseif not line:match '^[+-]' then
                  sign_count = 0
                elseif line:match '^[+-]%s*$' then
                  sign_count = sign_count + 1
                else
                  item.sign = line:sub(1, 1)
                  item.file = header.file
                  item.line = line:sub(2)
                  if item.sign == '+' then
                    item.pos = { header.new.start + sign_count, 0 }
                    sign_count = sign_count + 1
                  else
                    item.pos = { header.new.start, 0 }
                    sign_count = 0
                  end
                  return true
                end
                return false
              end,
            },
            ctx
          )
        end,
      },
    },
  },
},

[AlejandroSanchez90]

thanks you so much!!

[chuan2984]

for anyone thats looking to fix this incase you get the opts.cmd is required error, the API changed, now proc only takes two args, you need to vim.tbl_deep_extend('force', your_opts, opts or {}

[drowning-cat]

@chuan2984 Patched